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piscsi(1)                   General Commands Manual                  piscsi(1)

NAME
       piscsi - Emulates SCSI devices using the Raspberry Pi GPIO pins

SYNOPSIS
       piscsi [-F FOLDER] [-L LOG_LEVEL[:ID:[LUN]]] [-P ACCESS_TOKEN_FILE] [-R
       SCAN_DEPTH]  [-h]  [-n  VENDOR:PRODUCT:REVISION]  [-p  PORT]  [-r   RE‐
       SERVED_IDS]  [-n  TYPE]  [-v]  [-z  LOCALE]  [-IDn:[u]  FILE] [-HDn[:u]
       FILE]...

DESCRIPTION
       piscsi emulates SCSI devices using the Raspberry Pi GPIO pins.

       In the arguments to PiSCSI, one or more SCSI (-IDn[:u]) devices can  be
       specified.   The number (n) after the ID or HD identifier specifies the
       ID number for that device. The optional number (u)  specifies  the  LUN
       (logical unit) for that device. The default LUN is 0.  For SCSI: The ID
       is limited from 0-7. However, typically SCSI ID 7 is reserved  for  the
       "initiator" (the host computer). The LUN is limited from 0-31.

       PiSCSI  will determine the type of device based upon the file extension
       of the FILE argument.
           hd1: SCSI Hard Disk image (generic, non-removable, SCSI-1)
           hds: SCSI Hard Disk image (generic, non-removable)
           hdr: SCSI Hard Disk image (generic, removable)
           hdn: SCSI Hard Disk image (NEC compatible - only  used  with  PC-98
       computers)
           hdi:  SCSI  Hard  Disk  image  (Anex86 proprietary - only used with
       PC-98 computers)
           nhd: SCSI Hard Disk image (T98Next proprietary  -  only  used  with
       PC-98 computers)
           hda:  SCSI  Hard Disk image (Apple compatible - typically used with
       Macintosh computers)
           mos: SCSI Magneto-Optical image  (generic  -  typically  used  with
       NeXT, X68000, etc.)
           iso: SCSI CD-ROM or DVD-ROM image (ISO 9660 image)
           is1: SCSI CD-ROM or DVD-ROM image (ISO 9660 image, SCSI-1)

       For  example, if you want to specify an Apple-compatible HD image on ID
       0, you can use the following command:
           sudo piscsi -ID0 /path/to/drive/hdimage.hda

       Note: PiSCSI is a fork of RaSCSI. The two cannot be run in parallel  on
       the same system.

       Once PiSCSI starts, it will open a socket (default port is 6868) to al‐
       low external management commands.  If another  process  is  using  this
       port,  PiSCSI  will  terminate,  since it is likely another instance of
       PiSCSI or RaSCSI.  Once PiSCSI has initialized, the scsictl utility can
       be used to send commands.

       To  quit PiSCSI, press Control + C. If it is running in the background,
       you can kill it using an INT signal.

OPTIONS
       -b BLOCK_SIZE
              The optional block size, either 512, 1024, 2048 or  4096  bytes.
              Default size is 512 bytes.

       -F FOLDER
              The  default folder for image files. For files in this folder no
              absolute path needs to be specified. The initial default  folder
              is '~/images'.

       -L LOG_LEVEL[:ID:[LUN]]
              The  piscsi log level (trace, debug, info, warning, error, off).
              The default log level is 'info' for all devices unless a partic‐
              ular device ID and an optional LUN was provided.

       -P ACCESS_TOKEN_FILE
              Enable  authentication and read the access token from the speci‐
              fied file. The access token file must be owned by root and  must
              be readable by root only.

       -R SCAN_DEPTH
              Scan  for  image files recursively, up to a depth of SCAN_DEPTH.
              Depth 0 means to ignore any folders  within  the  default  image
              filder.  Be careful when using this option with many sub-folders
              in the default image folder. The default depth is 1.

       -h     Show a help page.

       -n VENDOR:PRODUCT:REVISION
              Set the vendor, product and revision for the device, to  be  re‐
              turned  with the INQUIRY data. A complete set of name components
              must be provided. VENDOR may have up to 8, PRODUCT up to 16, RE‐
              VISION  up  to  4  characters. Padding with blanks to the maxium
              length is automatically applied. Once set the name of  a  device
              cannot be changed.

       -p PORT
              The piscsi server port, default is 6868.

       -r RESERVED_IDS
              Comma-separated  list  of  IDs to reserve. Pass an empty list in
              order to not reserve anything.  -p TYPE The optional case-insen‐
              sitive  device  type  (SAHD, SCHD, SCRM, SCCD, SCMO, SCBR, SCDP,
              SCLP, SCHS). If no type is specified for devices that support an
              image file, piscsi tries to derive the type from the file exten‐
              sion.

       -v     Display the piscsi version.

       -z LOCALE
              Overrides the default locale for  client-faces  error  messages.
              The client can override the locale.

       -IDn[:u] FILE
              n  is  the  SCSI  ID  number (0-7). u (0-31) is the optional LUN
              (logical unit). The default LUN is 0.

              FILE is the name of the image file to use for the  SCSI  device.
              For devices that do not support an image file (SCBR, SCDP, SCLP,
              SCHS) the filename may have a special meaning or  a  dummy  name
              can  be  provided.  For SCBR and SCDP it is an optioinal priori‐
              tized list of network interfaces, an  optional  IP  address  and
              netmask,   e.g.  "interface=eth0,eth1,wlan0:inet=10.10.20.1/24".
              For SCLP it is the print command to be used  and  a  reservation
              timeout in seconds, e.g. "cmd=lp -oraw %f:timeout=60".

              FILE is the name of the image file to use for the SCSI device.

EXAMPLES
       Launch PiSCSI with no emulated drives attached:
          piscsi

       Launch PiSCSI with an Apple hard drive image as ID 0 and a CD-ROM as ID
       2
          piscsi -ID0 /path/to/harddrive.hda -ID2 /path/to/cdimage.iso

       Launch PiSCSI with a removable SCSI drive image as ID 0 and the raw de‐
       vice  file  /dev/hdb (e.g. a USB stick) and a DaynaPort network adapter
       as ID 6:
          piscsi -ID0 -t scrm /dev/hdb -ID6 -t scdp daynaport

       To create an empty, 100MiB HD image, use the following command:
          dd if=/dev/zero of=/path/to/newimage.hda bs=512 count=204800

       In case the fallocate command is available a much faster alternative to
       the dd command is:
          fallocate -l 104857600 /path/to/newimage.hda

SEE ALSO
       scsictl(1), scsimon(1), scsidump(1)

       Full documentation is available at: <https://www.piscsi.com>

                                                                     piscsi(1)
